This is the fourth game in our "Focus" series. This time we've created a new game, which we call "au". The game is all about speed and control. You have to play it quickly, because it will get faster and more difficult as you progress through the levels.

So, how to play?

You have to control the ball and avoid all of the obstacles. The ball will be placed in front of a new obstacle, so you will have to control it and move it to the right side to pass the level.

The ball can be moved by touching the screen and the obstacles can be stopped by hitting them. The ball will get higher as you go, so you will have to control it and keep it at a certain height.